total end-systolic diameter

to·tal end-sys·tol·ic di·am·e·ter (TESD),

cross-sectional diameter of the left ventricle including the septum and posterior wall thicknesses in systole.

to·tal end-sys·tol·ic di·am·e·ter

(tō'tăl end-sis-tol'ik dī-am'ĕ-tĕr) Cross-sectional diameter of the left ventricle, including the septum and posterior wall thicknesses in systole.